Car comparison

BMW 3 Series Convertible (E46) · Facelift 2003 325CivsBMW 3 Series Touring (G21) 320d

Compare specs, acceleration, fuel consumption, dimensions, practicality, and estimated running costs side by side.

New comparison

BMW 3 Series Convertible (E46) · Facelift 2003

325Ci

192 hp2494 ccGasolineRWDManualNaturally aspiratedCabriolet / convertible2003-2006

BMW 3 Series Touring (G21)

320d

190 hp1995 ccDieselRWDManualTurbochargedWagon / estate2019-2022

Comparison overview

Use the estimates as comparison hints and verify exact figures before making decisions.

BMW 3 Series Touring (G21) 320d

Quickest 0-100 km/h
7.5 s
Highest torque
400 Nm
295 lb-ft
Lightest
1,565 kg
3,450 lb
Best power-to-weight
121 hp/t
91 kW/t
8.2 kg/hp
Lowest combined fuel consumption
4.8 L/100 km
49.0 mpg US
58.9 mpg UK
Lowest city consumption
5.5 L/100 km
42.8 mpg US
51.4 mpg UK
Lowest highway consumption
4.4 L/100 km
53.5 mpg US
64.2 mpg UK
Lowest CO2 emissions
125 g/km
Best estimated range
833 km
518 mi
Largest trunk
500 L
Best overall score
63/100
Best performance score
53/100
Best economy score
94/100
Best practicality score
84/100

BMW 3 Series Convertible (E46) Facelift 2003 325Ci

Fastest top speed
234 km/h
145 mph
Most powerful
192 hp
143 kW

Specification comparison

Specification comparison
Model	BMW3 Series Convertible (E46)Facelift 2003325Ci	BMW3 Series Touring (G21)320d
Power	192hp143kW	190hp142kW
Torque	245Nm181lb-ft	400Nm295lb-ft
Curb weight	1,640kg3,616lb	1,565kg3,450lb
Gross weight	1,985kg4,376lb	2,180kg4,806lb
Top speed	234 km/h 145 mph	229 km/h 142 mph
To 99% top speed	109.0s99% target: 232 km/h / 144 mph Calculated	69.3s99% target: 227 km/h / 141 mph Calculated
0-100 km/h	8.0s	7.5s
0-200 km/h	37.2s Calculated	29.5s Calculated
0-60 mph	7.6s Calculated	7.1s Calculated
Fuel consumption	9.6L/100 km24.5mpg US29.4mpg UK	4.8L/100 km49mpg US58.9mpg UK
Fuel consumption city	13.4L/100 km17.6mpg US21.1mpg UK	5.5L/100 km42.8mpg US51.4mpg UK
Fuel consumption highway	7.3L/100 km32.2mpg US38.7mpg UK	4.4L/100 km53.5mpg US64.2mpg UK
Quarter mile	15.8s Calculated	15.4s Calculated
Power-to-weight	117hp/t87kW/t53hp/1000 lb Calculated	121hp/t91kW/t55hp/1000 lb Calculated
Torque-to-weight	149Nm/t100lb-ft/ton Calculated	256Nm/t171lb-ft/ton Calculated
Estimated range	656km408mi Calculated	833km518mi Calculated
Displacement	2,494cc152cu in	1,995cc122cu in
Length	4,488mm177in	4,709mm185in
Width	1,757mm69in	1,827mm72in
Height	1,372mm54in	1,440mm57in
Wheelbase	2,725mm107in	2,851mm112in
Front track	1,471mm58in	1,573mm62in
Rear track	1,483mm58in	1,569mm62in
Ground clearance	-	141mm6in
Trunk volume	260L	500L
Max trunk volume	300L	1,510L
Doors	2	5
Seats	4	5
Fuel tank	63L	40L
CO2 emissions	229g/km	125g/km

Performance charts

Use the estimates as comparison hints and verify exact figures before making decisions.

Dyno simulation

Estimated stock-style power and torque curves by engine speed.

BMW 3 Series Convertible (E46) Facelift 2003 325CiBMW 3 Series Touring (G21) 320dPowerTorque

Dyno simulation data table
Vehicle	Peak power RPM	Peak torque RPM	Max engine speed
BMW3 Series Convertible (E46)Facelift 2003325Ci	6,000 rpm	3,500 rpm	6,250 rpm
BMW3 Series Touring (G21)320d	4,000 rpm	1,750-2,500 rpm	4,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
Metric	BMW3 Series Convertible (E46)Facelift 2003325Ci	BMW3 Series Touring (G21)320d
	Acceleration checkpoints
0-60 mph 0-97 km/h	7.6 s	7.1 s
0-100 km/h 0-62 mph	8.0 s	7.5 s
0-200 km/h 0-124 mph	37.2 s	29.5 s
Top speed	234 km/h 145 mph	229 km/h 142 mph
	Drag race simulation
60 ft 18 m	2.5 s	2.7 s
330 ft 101 m	6.8 s	6.9 s
1/8 mile 201 m	10.3 s	10.2 s
1000 ft 305 m	13.3 s	13.0 s
1/4 mile 402 m	15.8 s	15.4 s
Trap speed 1/4 mile 402 m	145 km/h 90 mph	155 km/h 96 mph

Power comparison

Bar comparison chart for Power. Higher is better · hp / kW

Chart data table
Vehicle	Value
BMW3 Series Convertible (E46)Facelift 2003325Ci	192 hp 143 kW
BMW3 Series Touring (G21)320d	190 hp 142 kW

BMW 3 Series Convertible (E46) Facelift 2003 325Ci has 2 hp more than BMW 3 Series Touring (G21) 320d.

The biggest power difference is between BMW 3 Series Touring (G21) 320d and BMW 3 Series Convertible (E46) Facelift 2003 325Ci: 2 hp (1 kW).

Torque comparison

Bar comparison chart for Torque. Higher is better · Nm / lb-ft

Chart data table
Vehicle	Value
BMW3 Series Convertible (E46)Facelift 2003325Ci	245 Nm 181 lb-ft
BMW3 Series Touring (G21)320d	400 Nm 295 lb-ft

Curb weight comparison

Bar comparison chart for Curb weight. Lower is better · kg / lb

Chart data table
Vehicle	Value
BMW3 Series Convertible (E46)Facelift 2003325Ci	1,640 kg 3,616 lb
BMW3 Series Touring (G21)320d	1,565 kg 3,450 lb

Top speed without limiter comparison

Bar comparison chart for Top speed without limiter. Higher is better · km/h / mph

Chart data table
Vehicle	Value
BMW3 Series Convertible (E46)Facelift 2003325Ci	234 km/h 145 mph
BMW3 Series Touring (G21)320d	229 km/h 142 mph

0-100 km/h comparison

Bar comparison chart for 0-100 km/h. Lower is better · seconds

Chart data table
Vehicle	Value
BMW3 Series Convertible (E46)Facelift 2003325Ci	8.0 s
BMW3 Series Touring (G21)320d	7.5 s

Although BMW 3 Series Convertible (E46) Facelift 2003 325Ci has more power, BMW 3 Series Touring (G21) 320d is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between BMW 3 Series Touring (G21) 320d and BMW 3 Series Convertible (E46) Facelift 2003 325Ci: 0.5 s.

Fuel consumption comparison

Bar comparison chart for Fuel consumption. Lower is better · L/100 km / mpg US / mpg UK

Chart data table
Vehicle	Value
BMW3 Series Convertible (E46)Facelift 2003325Ci	9.6 L/100 km 24.5 mpg US 29.4 mpg UK
BMW3 Series Touring (G21)320d	4.8 L/100 km 49.0 mpg US 58.9 mpg UK

The biggest fuel consumption difference is between BMW 3 Series Touring (G21) 320d and BMW 3 Series Convertible (E46) Facelift 2003 325Ci: 4.8 L/100 km.

Power-to-weight comparison

Bar comparison chart for Power-to-weight. Higher is better · hp/t / kW/t

Chart data table
Vehicle	Value
BMW3 Series Convertible (E46)Facelift 2003325Ci	117 hp/t 87 kW/t 8.5 kg/hp
BMW3 Series Touring (G21)320d	121 hp/t 91 kW/t 8.2 kg/hp

Estimated range comparison

Bar comparison chart for Estimated range. Higher is better · km / mi

Chart data table
Vehicle	Value
BMW3 Series Convertible (E46)Facelift 2003325Ci	656 km 408 mi
BMW3 Series Touring (G21)320d	833 km 518 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
Vehicle	Power	Acceleration	Top speed
BMW3 Series Convertible (E46)Facelift 2003325Ci	192 hp 143 kW	8.0 s	234 km/h 145 mph
BMW3 Series Touring (G21)320d	190 hp 142 kW	7.5 s	229 km/h 142 mph

Most attractive quadrant

Scatter chart with performance score on the X axis and practicality score on the Y axis.

Vehicle

Performance score

Practicality score

BMW3 Series Convertible (E46)Facelift 2003325Ci

Power	192 hp 143 kW
0-100 km/h	8.0 s
Top speed 234 km/h 145 mph

Doors/seats	2 doors 4 seats
Trunk	260 L 9.2 cu ft
Length	4,488 mm 176.7 in
Height	1,372 mm 54.0 in

BMW3 Series Touring (G21)320d

Power	190 hp 142 kW
0-100 km/h	7.5 s
Top speed 229 km/h 142 mph

Doors/seats	5 doors 5 seats
Trunk	500 L 17.7 cu ft
Length	4,709 mm 185.4 in
Height	1,440 mm 56.7 in

Performance vs fuel economy

Cars closer to the top-right corner combine stronger performance with better fuel economy scores.

Vehicle

Performance score

Fuel economy score

BMW3 Series Convertible (E46)Facelift 2003325Ci

Power	192 hp 143 kW
0-100 km/h	8.0 s
Top speed 234 km/h 145 mph

9.6 L/100 km

24.5 mpg US

29.4 mpg UK

BMW3 Series Touring (G21)320d

Power	190 hp 142 kW
0-100 km/h	7.5 s
Top speed 229 km/h 142 mph

4.8 L/100 km

49.0 mpg US

58.9 mpg UK

BMW 3 Series Touring (G21) 320d is closest to the top-right balance target for performance and fuel economy.

Acceleration vs fuel consumption

Cars closer to the lower-left corner offer a better mix of quick acceleration and low fuel consumption.

Acceleration vs fuel consumption data table
Vehicle	Fuel consumption, L/100 km	0-100 km/h, s
BMW3 Series Convertible (E46)Facelift 2003325Ci	9.6 L/100 km 24.5 mpg US 29.4 mpg UK	8.0 s
BMW3 Series Touring (G21)320d	4.8 L/100 km 49.0 mpg US 58.9 mpg UK	7.5 s

Power-to-weight vs fuel consumption

The shaded area favors higher power-to-weight with lower combined fuel consumption.

Power-to-weight vs fuel consumption data table
Vehicle	Power-to-weight, hp/t	Fuel consumption, L/100 km
BMW3 Series Convertible (E46)Facelift 2003325Ci	117 hp/t 87 kW/t 8.5 kg/hp	9.6 L/100 km 24.5 mpg US 29.4 mpg UK
BMW3 Series Touring (G21)320d	121 hp/t 91 kW/t 8.2 kg/hp	4.8 L/100 km 49.0 mpg US 58.9 mpg UK

Detailed score breakdown

Vehicle

BMW3 Series Convertible (E46)Facelift 2003325Ci

BMW3 Series Touring (G21)320d

Power

192 hp

143 kW

190 hp

142 kW

Torque

245 Nm

181 lb-ft

400 Nm

295 lb-ft

Acceleration

8.0 s

7.5 s

Top speed

234 km/h

145 mph

229 km/h

142 mph

Lightness

1,640 kg

3,616 lb

1,565 kg

3,450 lb

Fuel consumption

9.6 L/100 km

24.5 mpg US

29.4 mpg UK

4.8 L/100 km

49.0 mpg US

58.9 mpg UK

Practicality

Doors/seats	2 doors 4 seats
Trunk	260 L 9.2 cu ft
Length	4,488 mm 176.7 in
Height	1,372 mm 54.0 in

Doors/seats	5 doors 5 seats
Trunk	500 L 17.7 cu ft
Length	4,709 mm 185.4 in
Height	1,440 mm 56.7 in

Range score

656 km

408 mi

833 km

518 mi

CO2 score

229 g/km

125 g/km

Trunk score

260 L

9.2 cu ft

500 L

17.7 cu ft

Power-to-weight score

117 hp/t

87 kW/t

8.5 kg/hp

121 hp/t

91 kW/t

8.2 kg/hp

Overall

Fixed score

Fuel cost and annual usage

Estimate running costs from combined consumption, your annual distance, and the fuel price in your local currency.

Average annual distanceDistance unitFuel price in your local currencyPrice unit

Enter the fuel price in your local currency, for example €/L, $/gal, £/L or any other local currency.

LC = Local Currency

Fuel cost and annual usage
Vehicle	BMW 3 Series Convertible (E46) Facelift 2003 325Ci	BMW 3 Series Touring (G21) 320d
Consumption	9.6 L/100 km24.5 mpg US29.4 mpg UK	4.8 L/100 km49 mpg US58.9 mpg UK
Cost / 100 km	16.80 LC100 km	8.40 LC100 km
Cost / 100 mi	27.04 LC100 mi	13.52 LC100 mi
Annual fuel used	1,440 L380 US gal317 UK gal	720 L190 US gal158 UK gal
Annual fuel cost	2,520 LC/year	1,260 LC/year